IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
155 articles
23 Sep 2026 · 6 min read
agents
TypeSafe AI's new model refuses to generate text — it takes messy context and returns a typed decision with a confidence score. A practical look at what a 'System One Model' actually is, and where it fits next to the LLM you already run.
Read more23 Sep 2026 · 4 min read
architecture
Daily English practice for tech professionals. Morning session covering system architecture and scalability with pronunciation guide, exercises, and real-world examples.
Read more20 Sep 2026 · 4 min read
architecture
Uber's fix for retry storms wasn't a smarter backoff algorithm. It was a header that tells every hop in a call chain whether an error actually belongs to it.
Read more20 Sep 2026 · 4 min read
architecture
Inngest's postmortem on a September 18 outage traces the exact 40-minute path from one cascading DELETE to PgBouncer refusing every new connection. The timestamps are the whole lesson.
Read more19 Sep 2026 · 5 min read
agents
OpenAI opened its managed Agents API on September 10. The sandbox pricing looks simple until you try to actually forecast a bill. A build-vs-buy breakdown for tech leads.
Read more16 Sep 2026 · 4 min read
ai-infrastructure
AWS Interconnect – multicloud with Azure went into preview in August, capped at 1 Gbps and four regions. That's not enough bandwidth for training, but it's exactly enough to fix the multi-vendor inference problem we've been duct-taping for a year.
Read more16 Sep 2026 · 5 min read
agents
OpenAI put its Codex harness behind a single API call on September 10. I built the same tree.py task both ways and found the real gap isn't the model — it's who owns the failure.
Read more15 Sep 2026 · 4 min read
agents
Fable 5.1 can read every earlier Claude model's thinking blocks. No earlier model can read Fable 5.1's. That asymmetry looks like a footnote until your team needs to roll back a production agent mid-incident.
Read more14 Sep 2026 · 5 min read
agents
On September 3, 2026, Cursor let you swap its own cloud-agent infrastructure for eight other backends, including Vercel Sandbox. That's not a partnership announcement. It's Cursor telling you where its moat actually is.
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